I really like the look of cypress mulch, and have read good things about it, and would like to use it in George's new tortoise table that we'll hopefully be building tomorrow. The thing is, garden centres don't sell it here in the UK, I can only find the Zoo Med bags, and 26l are the biggest bags. How many of those roughly would I need for his 5 x 2 foot tortoise table? They are quite expensive, so I'm thinking I may have to go with compost instead. I don't want to use sand this time, as he has soil and sand at the moment and the sand gets onto everything!